Knocked-down cabinet



April 26, 1966 H. M. PIKER 3,248,157

KNOCKED-DOWN CABINET Filed Sept. 11, 1962 4 Sheets-Sheet 1 INVENTOR.

' HFRBERT M. PIKE Ana/7; ey

April 26, 1966 H. M. PIKER KNOCKED-DOWN CABINET Filed Sept... 11, 1962 4 Sheets-Sheet 2 39 INVENTOR. HER BERT M. PIKER April 26, 1966 H PlKER 3,248,157

KNOCKED-DOWN CABINET Filed Sept. 11, 1962 4 sheetsv-sheet 3 INVENTOR. HER BERT M PIKER BY M 4. W

lm-org e April 26, 1966 Filed Sept. 11, 1962 llllllllllllllllllllm H. M. PIKER KNOCKED-DOWN CABINET Illlllllllll 4 Sheets-Sheet- 4 INVENTOR. HERBERT M. PIKEE United States Patent 3,248,157 KNOCKED-DOWN CABINET Herbert M. Piker, Wyoming, Ohio, assignor to The Hamilton-Skotch Corporation, Hamilton, 0hio, a corporation of Ohio Filed Sept. 11, 1962, Ser. No. 222,817 12 Claims. (Cl. 312-257) This invention relates to improvements in metal cabinets, particularly utility cabinets that are shipped to the user in knocked-down form.

Utility cabinets of a size capable for use for storing household and other articles are generally permanently made, that is, their back, top, base and/ or bottom, and sides are permanently connected with one another while the shelves may be removable and the cabinet as a whole provided with a swinging door.

Such cabinets are of a size comparable with the sink cabinets, either beneath the sink or adjacent thereto, and with said sink adjacent cabinets of a height comparable to the height of the upper edge of the sink above the floor. These cabinets are also of a height in excess of said sink adjacent cabinets and used for utility storage purposes whether in a kitchen, basement, or in ofiices-and workshops.

The built-up cabinets present a storage and shipping problem for the manufacturer and retailer not so much because of their weight but because of the bulkiness there- A of and are generally expensive to acquire.

The principal object of the present invention is the provision of a cabinet for the above indicated purposes that is produced in knocked-down condition, such that the eventual purchaser and user can readily assemble the same by merely interlocking the parts thereof, that is, the back, base, top, sides and shelves.

Another object of this invention is the provision of a knocked-down cabinet for accomplishing the foregoing object and which does not require the use of securing,

means such as screws, bolts and nuts, and the like, for securely locking parts in operative relation to one another and in which the said parts cannot be inadvertently disassembled.

A still further object of the present invention is the provision of a cabinet for accomplishing the foregoing objects and in which the parts may be mass produced for economical results and in which certain of the parts are selectively usable in diiferent relationships to one another.

Other objects and advantages of the present invention should be readily apparent by reference to the following specification considered in conjunction with the accompanying drawings forming a part thereof and it is to be understood that any modifications may be made in the exact structural details there shown and described, within the scope of the appended claims, without departing from or exceeding the spirit of the invention.

In the drawings:

FIG. 1 is a perspective view of an erected cabinet incorporating the principles of the present invention.

FIG. 2 is an enlarged, fragmentary, sectional view through the upper end of the cabinet as seen from line 2-2 on FIG. 1.

FIG. 3 is an enlarged, fragmenary, sectional view through the lower end of the cabinet as seen from line 3--3 on FIG. 1.

FIG. 4 is an enlarged, fragmentary, sectional view through the lower end of the cabinet as seen from line 44 on FIG. 1 taken at right angles to FIG. 3.

FIG. 5 is an enlarged, horizontal, sectional view of the cabinet just below the top thereof as seen from line 55 on FIG. 1.

FIG. 6 is a view similar to FIG. 5 taken on a plane below the plane of FIG. 5 on line 66 on FIG. 1.

FIG. 7 is a fragmentary, sectional view through the hinge of the door and cabinet as seen from line 77 on FIG. 5.

FIG. 8 is an enlarged, fragmentary, sectional view through the hinged door as seen from line 88 on FIG. 1.

FIG. 9 is a perspective view of the back of the cabinet of the present invention.

FIG. 10 is a perspective view of a side wall of the cabinet.

. FIG. 11 is a perspective view of the top and base of the cabinet.

FIG. 12 is a perspective view of a shelf of the cabinet.

FIG. 13 is a perspective view of the bracket utilized in forming a hinge for the door of the cabinet.

Throughout the several views of the drawingssimilar reference characters are employed to denote the same or similar parts.

Basically, the cabinet of the present invention comprises a back, top, base and sides with shelves between the sides and extending from the back to substantially the outer edges of the said sides, base and top. If desired the cabinet may be so used, that is, with an open front, but, if desired, a swinging door may be hinged to the outer edge or face of one of the cabinet sides. In the present invention, and as noted above, the said back, top, base, sides and shelves are interlocked with one another into a rigid construction without the use of screws, bolts or nuts, or any other permanently securing means.

Accordingly, use is made of a back 15 as illustrated in FIG. 9 and which includes a back panel or body portion 16 having its rearward and forward edges intumed, or upset, to provide inwardly projecting flanges 17 and 18. The top and bottom edges of the panel or body portion 16 are respectively inwardly and angularly bent or disposed to provide upper and lower intermediate flanges as at 19 and 20; the upper intermediate flange 19 inwardly and upwardly extending while the lower intermediate flange 20 inwardly and downwardly extends. Each of said intermediate flanges 19 and 20 is respectively followed by a terminal flange 21 and 22 with the said upper terminal flange 21 upwardly and outwardly projecting from its intermediate flange 19 while the lower terminal flange 22 downwardly and outwardly projects from its intermediate flange 20.

The back panel 16 is provided with a plurality of sets of inwardly offset lugs with each set consisting of at least two lugs 23 and 24 in transverse alignment with respect to the back panel 16. The said lugs 23 and 24 are each formed by making a semi-circular slit or cut 25 through the said back panel 16 whereupon the body portion of each of said lugs is inwardly and upwardly bent to provide a base or shoulder 26 at the bot-tom of each lug. The base or bottom of the lugs is best illustrated in FIG. 2 and which illustration discloses the lugs as inwardly of the back panel with the space between the body portion of the lug and back panel filled by a cooperating cabinet part, as will presently be made clear. In practice, and as intimated above, a plurality of sets of lugs 23 and 24 will be provided, the number depending upon the size of the cabinet and the number or spacing of the shelves within the cabinet; there is illustrated in FIG. 9 four sets of lugs 23 and 24. I

The back panel 16, as illustrated in FIG. 9, is shown as including four pear-shaped or keyhole-shaped openings 27 which are for the purpose of hanging the erected cabinet on suitable headed hanging members, such as nails or screws. It should be understood that the cabinet need not be hung since it may rest on the base of the cabinet, as subsequently made clear.

3 Cooperating with the cabinet back 15 is a top and a base which are duplicates of one another and employed in reverse positions and which member is illustrated in FIG. 11 in the position it is used as a top and identified by the reference'numeral 28. The said top-base member 28 comprises a bodyportion or panel 29 having at its side edges inwardly, when used as a top, downwardly, and when usedas a base, upwardly, turned to provide side flanges 30 and 31. The rear edge of the panel 29 has inwardly and angularly, when used as a top, downwardly, and when used as a base, upwardly, bent-flanges to provide an angular interlocking flange 32. The forward edge of the said body portion or panel 29 is first bent to provide a vertically projecting panel 33 which is substantially normal to the said body portion or panel 29; when the top-base 28 is used as a top the panel 33 downwardly projects and forms the front of said top, and when said part is used as the base the said panel 33 upwardly extends to form the front of the base. The said forward end of the panel 29 beyond the panel 33 is inwardly bent to provide whether the part is used as a top or a base, a horizontal flange 34 which is substantially norm-a1 to the panel 33 and inwardly projects relative to the erected cabinet. When the said top-base member 28 is employed as the cabinet top the angular flange 32 inwardly and downwardly projects with the flange 33 downwardly or vertically extending, to form the front of said top, while the flange 34 inwardly and horizontally extends. When the said topbase member 28 is employed as the cabinet base its flange 32 inwardly and upwardly extends while its flange 33 upwardly and vertically projects, to form the front of said base, with the flan'ge 34 inwardly horizontally projecting.

Cooperating with the said cabinet back, top and base are sides which upon being reversed are utilizable as either a right side or a left side and which side is illustrated in FIG. and identified in its entirety by'the reference numeral 35.

The said side 35 .includesa body portion or panel 36 having inwardly of its upper, lower and rear edges'a shoulder, respectively 37, 38 and 39 thereby providing said body portion or panel 36 with inwardly offset upper panel portion 40, inwardly offset rear panel portion 41 and inwardly lower panel portion 42. It should be noted that the depth of the offset portions 40 and 42 are equal, substantially, to the Width of the top-base side flanges 30 and 31 which fit thereon, as will presently be made clear. Likewise, the depth of the oflsetrear panel portion 41 'is equal, substantially, to the width of the back side flanges 17 and 18, again, which fit one another in the erection of the cabinet, as will presently be made clear. The said side wall offset upper and lower panel portions 40 and 42 are respectively followed by inwardly projecting upper and lower flanges 43 and 44. The offset rear panel portion 41 is likewise followed by an inwardly projecting rear flange 45. .The side wall body portion or panel 36 has its forward end inwardly turned to provide a relatively narrow panel 46 which in effect provides a side wall front and said side wall forward end is further inwardly bent to provide inwardly extending flange 47.

It will be noted that the panel 46, in effect, cabinet front, extends at right angles to the side body portion or panel 36 while the inside flange 47 extends at right angles to the panel 46 and is substantially parallel throughout its height to the said side body portion or panel 36.

The top and bottom insert panel portions 40 and 42 along with their flanges 43 and 44 stop short of the front panel 46, a distance substantially equal to the thickness of the metal from which the part is stamped, and integral extensions of said top and bottom panel portions 40 and 42 are inwardly bent to provide tongues 48 and 49,

respectively, at the upper and lower front corners of the cabinet sides 35. V

The cabinet sides inwardly extending, or inside flanges 47 are each provided with a plurality of notches 50 each 50 in each side wall inside flange 47 are of the same num ber as there are sets of lugs 23 and 24 and said notches 50 in one side wall are each'in transverse alignment with a notch in the other side wall and said aligned notches are related to or in transverse alignment with a set of the said lugs 23 and 24 in such a manner as to cooperate therewith in positioning and supporting the cabinet shelves, as will presently be made clear.

. Cooperating with the said cabinet back, top, base and side wall members is a shelf, or shelves, illustrated in detail in FIG.- 12 and identified in its entirety by the reference numeral 52.1 The said shelf member 52 is also uti-, lized as a bottom for the cabinet as will be made clear.

The shelf member 52 comprises a body portion or panel 53 having its side ends down-turned to provide side flanges 54 and 55. The said shelf body portion or panel 53 has its rear end similarly down-turned to provide 1 It should be noted that the side flanges 54 and 55 stop short of the back or real a back or rear flange 56.

flange 56 and thereby provide a space 57 between said flanges for an obvious purpose as will subsequently be i made clear.

The said shelf body portion or-panel 53 has its forward end down-turned a very small amount to provide a lock i ing shoulder as at 58 with the portion ahead of said shoulder rolled to provide .a bead or roll 59 which, in effect, provides a forward safe edge for the said shelf 52.

The foregoing parts along with a door, when desired,

are packed for delivery to a user who sets up the same into a substantially rigid cabinet.

In order to set up the cabinet the user positions one of the top-base members 28 on a supporting surface with the marginal flanges upwardly thereof as 'seen in FIG. 3. Two side 'members 35 can then be positioned with one of them in the position illustrated in FIG. 10, that is,

with its flanges directed inwardly and resting on the flange 44, and the other reversed, with respect to the position thereof in FIG, 10, that is, with its marginal flanges inwardly projecting and resting on its end flange 43. It

will be understood that the said sides 35 have their respective flanges 44 and 43 on the upper surface of the base member body portion or panel 29.

beneath inwardly projecting flange 34, as illustrated for the assembly of the top and sides in FIG. 6.

The back 15 is now positioned to have its interlocking bottom inwardly and downwardly extending flange 22 to i be inwardly, behind, the inwardly, upwardly extending base member inter-locking back flange 32, as illustrated 1n FIG. 3. In positioning the said back 15 the vertical side flanges 17 and 18 thereof enter the spaces provided by the inset panel portions 41, vertically of the rear ends of the cabinet sides, and with said back side flanges 17 and 18 engaging the shoulders 38 of the said side members. Also, this arrangement engages the outer surfaces of the side members inwardly projecting rear flanges 45 with the inner surface of the back body portion or panel 16, all as illustrated in FIG. 5.

At this time the top is applied to the cabinet and which is effected by engaging the now inwardly and downwardly extending interlocking flange 32 of thetop 28 behind the upwardly and outwardly extending back upper interlocking flange 21. The positioning of the said top on the back and sides causes the top depending side flanges 30 and 3 1 to respectively enter the space provided by the inset panel the back body portion or panel 16 prevents inward movement of the back while the tongues 48 and 49 at the upper and lower corners of the sides prevent the said.

sides from being forwardly displaced with respect to the back. The offset upper, lower and .rear inset panel portions of the sides receiving the top, base and back side flanges further align and prevent inadvertent displacement of these parts.

The said parts are then locked in operative positions by the shelf or shelves 52. The parts are so designed and dimensioned that a shelf extends to carefully =fit between the sides and particularly snugly fit between the inset panel portions 41 thereof for thereby prohibiting any inward movement of the said sides since the same, particularly said inset panel portions 41, will be pressed against 7 the backside flanges 17 and 18.

In positioning the said shelf, each shelf being similarly positioned, the rolled forward end 59 thereof is first inserted in transversely aligned notches 50 in the side walls inwardly extending flanges- 47 and with the said rolled end 59 against the semi-circular base 51 of the notches. With the shelf so positioned and using the rolled end 59 as a fulcrum the shelf is actuated in a downward direction toward the cabinet back so that its rear flange 56 engages behind an aligned set of lugs 23 and 24 and with the free end of the flange 56 on the base 26 of said lugs.

The parts are so designed and dimensioned that some force is required to interengage the flange 56 and lugs 23 and 24 thereby locking the parts in operative positions. Upon the shelf being positioned in its final position the small oflset or shoulder 58, at the forward end'of the shelf and above its beaded or rolled end 59, engages behind the inner or free edge of the inwardly projecting flange 47 as illustrated in FIGS. 2 and 8.

As was noted above the example of the invention illustrated in the drawings shows four sets oflugs 23 and 24 and four notches in each side inwardly extending flange 47 wherefore four shelves 52 may be positioned, each in the same manner as above set forth for a single shelf.

It is contemplated to use a shelf 52 as the bottom of the cabinet and in this instance the back or rear flange 56 is bent to downwardly and inwardly project, as illus trated at 56' in FIG. 3. In other words the said flange 56 is bent to the same angle as the back inwardly extending intermediate bottom flange 20 to engage with the inner surface thereof. In order to lock the said \bottom, specifically identified in FIG. 3 by the reference numeral 52, in position, the from shoulder 58 thereof engages behind the inner or free edge of the base inwardly projecting flange 34 for thereby further locking the base and back in operative positions.

The door body portion or front panel 61 is provided transversely thereof between its right hand and left hand panels 63 and 64 with corrugation 91 for the purpose of rigidifying the same as well as for the purpose of adding a decorative effect to the said door. The said corrugation as seen in FIG. 8 is in the form of a V and inwardly extends with respect to the door outer. surface.

' The cabinet now has the elements thereof, namely, the back, top, base and sides, securely and rigidly interlocked with one another whereby the same may be used as an open faced shelved cabinet for the storage of parts or goods.

Preferably it is desired that the cabinet be provided with a swinging door indicated in its entirety in the drawings by the reference numeral 60.

the lower surface of the base.

The door 60 comprises a body portion or front panel 61 having, respectively, at its four sides outwardly angularly extending narrow top panel portions 62, right side narrow panel portion 63, bottom narrow panel portion 64 and left side narrow panel portion 65, which are for the purpose of reinforcing the door as well as adding a decorative effect thereto. Extending from the edges of the door panel, particularly from the narrow panels 62- 65 are, respectively, door top 66, door right side 67, door bottom 68 and door left side 69 which give the door itself depth or thickness. The free edges of the door top, right side, bottom and left side are, respectively, rolled on themselves to provide said members, respectively, with beads 70, 71, 72 and 73 and which are in effect the inner safe edges of the door. It should be noted, particularly from FIG. 1, that while the door 60 completely closes the open front end of the cabinet, the door is of less height than the cabinet and extends from the top of the cabinet to a point upwardly of the cabinet base.

In order to hinge or pivotally mount the door use is made of a pair of hinge brackets, such as illustrated in FIG. 13 and indicated in its entirety by the reference numeral 74. The brackets 74 are used in reverse positions for the upper and lower ends of the door, the bracket being illustrated in perspective in FIG. 13 and in vertical cross-section in FIG. 7 as applied at the upper end of the door.

The said hinge bracket 74 is substantially L-shaped and comprises a vertical or body portion 75 having one end upset or at right angles as at 76. The said bracket body portion 75 has at its lower end an inwardly offset narrow tongue 77. The bracket body portion'75 has substantially centrally thereof an aperture 78 while the right angle portion or arm 76 is provided near its outer free end with an aperture 79.

In order to properly-mount the hinge brackets on the cabinet one of the side walls front panel 46 is provided near its upper and lower ends, respectively, with a small diameter aperture and 81. Upwardly and downwardly spaced from said apertures, actually, the distance between the hinge bracket body portion aperture 78 and its tongue 77, the said side wall front panel 46 is additionally provided with rectangular apertures or openings, respectively, 82 and 83.

The parts are so designed and dimensioned that a hinge bracket 74 in the position as illustrated in FIG. 13 has its tongue 77 inserted through the rectangular opening 82 to be behind the side front panel 46 and with its body portion aperture 78 aligned with the said side wall front panel aperture80. A sheet metal screw 84, see FIG. 7, is then passed through the bracket body portion aperture 78 and threaded into the side wall front panel aperture 80. A bracket in a position 180 turned from that in FIG. 13 is then mounted at the lower end of the side wall' front panel utilizing the openings or apertures 82 and 83 and a sheet metal screw 84.

With the said upper and lower hinge brackets thus positioned the right angle arms 76 project from the front panel of the cabinet side in such a position that the under surface of the upper hinge bracket arm 76 is in the same plane as the top surface of the cabinet top while the said armof the lower hinge bracket will be upwardly of The reason for this construction, as noted above, is that the cabinet may be set solidly on its base and with the bottom edge of the door upwardly of the cabinet base lower surface and therefore the cabinet supporting surface and the door free to swing without drag.

The door top 66 and door bottom 68 are each provided inwardly of its vertical side 67 with an aperture 85 in alignment with the arm aperture 79. At the same time the door right side roll 71 is for a short distance, downwardly of its upper end and upwardly of its lower end, inwardly slit as at 86 and 87 in FIG. 7 and this portion of the door right side roll more tightly rolled, as at 88,

This roll or bead 88 is of a comparatively short lengthv by. comparison with the height of the cabinet and C011. stitutes or forms a hinge eye in alignment with the door top and bottom aperture 85 and bracket arms apertures 79. Projecting through the said aligned apertures and sleeve eye at each end of the door is a hinge pin 89 with its head 90 on the outer surface of the hinge bracket arm 76. For convenience in operation the central passage of the hinge roll or eye 88 is slightly smaller than the diameter of the hinge pin 89 wherefore a frictional grip is exerted by said hinge eyes on the hinge pins to prevent their working or moving outwardly of their hinged positions.

In practice the hinged side of the door is free of the cabinet side front panel wherefore no interference to the swinging of the door is afforded.

While the hinge brackets 74 have been described and are illustrated as secured to the cabinet side through a fastening screw 84, it is obvious that the said brackets may be secured in position through spot welding or the like when the sides are manufactured or produced.

From the foregoing, it is believed now obvious that there has been provided a shelved cabinet in which the back, top, base and sides are secured to one another in operative positions through the medium of interlocking and cooperating shelves and that the objects, initially set forth, are otherwise accomplished.

What is claimed is:

1. In a knocked-down cabinet the combination of a separate upstanding back member, a separate horizontal top member, a separate horizontal base member, a pair of separateupstanding side members, said back and side members each of a similar height and each of said top and base members having a width equal to the width of the back member and a length equal to the width of the side members, each of said members including a rectangular panel having bounding edges, each of said members having flanges from the bounding edges of its panel extending angularly to the plane of the panel, said side members each having one of its vertical flanges forming a front panel vertically thereof, certain of said back, top and base flanges interlocked with one another and the remaining flanges of said top, back and base members engaged, respectively, with each of the side-members and its front panel for spacing said side members from one another, a shelf intermediate the height of said upstanding back and side members maintaining same in spaced relation and maintaining the interlocked flangesrof the back, top and base in locked positions, and cooperating means on said shelf and said back and each side front panel locking the shelf in position.

2. Ina knocked-down cabinet the combination of a separate upstanding back member, a separate horizontal top member, a separate horizontal base member, a pair of separate upstanding side members, said back and side members each of a similar height and each of said top and base members having a width equal to the width of the back member and a length equal to the width of the side members, each of said members including a rectangular panel having bounding edges, each of said members having flanges from the bounding edges of its panel extending angularly to the plane of the panel, said side members each having one of its vertical flanges forming a. front panel vertically thereof, certain of said back, top and base flanges interlocked with one another and the remaining flanges of said top, back and base members engaged, respectively, with each of the side members and its front panel for spacing said side members from one another, a separate bottom member including arectangular panel having bounding edges, said bottom panel extending from side to side and from the back to each side front panel and said bottom panel having from the edges thereof depending flanges including spacing flanges engaging the base for spacing the bottom panel thereabove and interlocking flanges for locking said V 8 bottom with the base flange, a shelf intermediate the height of said upstanding back and side members maintaining same in spaced relation and maintaining the interlocked flanges of the back, top and base in locked positions, and cooperating means on said shelf and said of separate upstanding side members, said back and side members each of a similar height and each of said top and base members having a width equal to the width of the back member and a length equal to the width of the side members, each of said members including a rectangular panel having bounding edges, each of said members having flanges from the bounding edges of its panel extending angularly to the plane of the panel, said side members each having one of its vertical flanges forming a front panel vertically thereof, certain of said back, top and base flanges interlocked with one another and the remaining flanges of said top, back and base members engaged, respectively, with each of the side members and its front panel for spacing said side members from one another, a shelf intermediate the height of said upstanding back and side members maintaining same in spaced relation and maintaining the interlocked flanges of the back, top and base in locked positions, cooperating means on said shelf and said back and each side front panel locking the shelf in position, and a door hingedly carried by the front panel of one of said sides.

4. In a knocked-down cabinet the combination of a separate upstanding back member, a separate horizontal top member, a separate horizontal base member, a pair of separate upstanding side members, said back and side members each of a similar height and each of said top and base members having a width equal to the width of the back member and a length equal to the width of the side members, each of said members including a rectangular panel having bounding edges, eachof-said members having flanges from the bounding edges of its panel extending angularly to the plane of the panel, said side members each having one of its vertical flanges forming a front panel vertically thereof, certain of .said back, top

and base flanges interlocked with one another and the remaining flanges of said top, back and base members engaged, respectively, with each of the side members and its front panel for spacing said side members from one another, a separate bottom member including a rectangular panel having bounding edges, said bottom panel extending from side to side and from the back to each side front panel and said bottom panel having from the edges thereof depending flanges including spacing flanges engaging the base for spacing the bottom panel thereabove and interlocking flanges for locking said bottom with the base flanges, a shelf intermediate the height of said upstanding back and side members maintaining same in spaced relation and maintaining the interlocked flanges of the back, top and base in locked positions, cooperating means on said shelf and said back and each side front panel locking the shelf in position, and a door hingedly carried by the front panel of one of said sides.

5. In a cabinet of the class described including a back panel having upper, lower and side edges with said back panel upper and lower edges each having extending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top-panel side edges each having a depending side flange and said top panel having a depending front panel, a base including a base panel having front, rear and side edges with said base 4 9 r panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges respectively against the innersurface of the cabinet back, top and base, said side panels each having transversely projecting from its front edge a front panel, said top, base and back side flanges, respectively, engaging the side panels exterior surface adjacent to and inwardly of their top, bottom and rear edges, a shelf extending between the sides and from the back to each side front panel for pressing the side panels against the back panel having upper, lower and sides edges with said back panel upper and lower edges each having extending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top panel side edges each having a depending side flange and said top panel having a depending front panel, a base including a base panel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges respectively against the inner surface of the cabinet back, top and base, said side panels each having transversely projecting from its front edge a front panel, said top, base and back side flanges, respectivelyQengaging the side panels exterior surface adjacent to and inwardly of their top, bottom and rear edges, a shelf extending between the sides and from the back to each side front panel for pressing the side panels against the top, base and back side flanges, cooperating means on said shelf, back and side front panels locking the shelf in operative position and securing the cabinet back, top, base and sides in operative relation to one another, and a door hingedly connected to the front panel of one of said sides.

7. In a cabinet of the class described including a back panel having upper, lower and side edges with said back panel upper and loweredges each having extending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top panel side edges each having a depending side flange andsaid top panel having a depending front panel, a base including abase panel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges ea'ch having an upstanding side flange and said base panel having aniupstanding front panel, opposed sides each including a panel having a rear,-a front, a top and a bot- 19 tom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges respectively against the inner surface of the cabinet back, top and base, said side panel's each having transversely projecting from its front edge a front panel, said top,

base and back side flanges, respectively, engaging the side panels exterior surface adjacent to and inwardly of their top, bottom and rear edg'es, a shelf including a panel having front, rear, and side edges and extending between the sides and from the back to each side front panel for pressing the side panels against the top, base and back side flanges, said back having a plurality of inwardly positioned lugs in transverse alignment with a space behind each lug, said shelf having from its rear edge a depending flange disposed behind and in engagement with said lugs locking said shelf rear edge in position, and cooperating locking means on said side front panel and shelf front edge locking the front edge of the shelf in operative position and securing the cabinet back, top, base and sides in operative relation to'one another.

8. In a cabinet of the class described including a back panel having upper, lower and side edges with said back panel upper and lower edges each having eflending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an' inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top panel side edges each having a depending side flange and said top panel having a depending front panel, a base including a base panel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges respectively against the inner surface of the cabinet back, top and base, said side panels each having transversely projecting from its front edge a front panel, said top, base and back side flanges, respectively, engaging the side panels exterior surface adjacent to and inwardly of their top, bottom andrear edges, a shelf including a panel having front, rear, and side edges and extending between the sides and from the back to each side front panel for pressing the side panels against the top, base and back side flanges, said back having a plurality of inwardly positioned lugs in transverse alignment with a space behind each lug, said shelf having from its rear edge a depending flange disposed behind and in engagement with said lugs locking said shelf rear edge in position, said sides each having an inwardly projecting flange from its front panel with each flange having formed therein notches in transverse alignment with one another and the back lugs, and said shelf having its front edge rolled and disposed in each side inwardly projecting flange notch locking the said shelf front edge in operative position and securing the cabinet back, top, base and sides in operative relation to one another.

9. In a cabinet of the class described including a back panel having upper, lower and side edges with said back panel upper and lower edges each having extending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top panelside edges each having a depending side flange and said top panel having a ll a 7 depending front panel, a base including a basepanel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges, respectively, against the inner surface of the cabinet back, top and base, said side panels each having transversely projecting from its front edge a front panel, said top, base and back side flanges, respectively, engaging the 'side panels exterior surface adjacent to and inwardly of their top, bottom and rear edges, a shelf including a panel having front, rear, and side edges and extending between the sides and from the back to each side front panel for pressing the side panels against the top, base and back side flanges, cooperating means on said shelf, back and side front panels locking the shelf in operative position and securing the cabinet back, top, base and sides in operative relation to one another, said back having an inwardly angularly extending locking flange at its lower end, a bottom including a panel having front, rear, and side edges with said side edges having downwardly extending side flanges disposed on the cabinet base spacing the bottom panel upwardly of the base, said bottom having from its rear edge an inward angular latching flange engaged with the back lower inward latching flange, and cooperating means on said bottom forward edge and base front panel locking the bottom in operative position.

10. In a cabinet of the class described including a back panel having upper, lower and side edges with said back panel upper and lower edges each having extending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top panel side edges each having a depending side flange and said top panel having a depending front panel, a base including a base panel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges respectively against the inner surface of the cabinet back, top and base, said side panels each having transversely projecting from its front edge a front panel, said top, base and back side flanges, respectively, engaging the side panels exterior surface adjacent to and inwardly of their top, bottom and rear edges, a shelf extending between the sides and from the back to each side front panel for pressing the side panels against the top, base and back side flanges, cooperating means on said shelf, back and each side front panel locking the shelf in operative position and securing the cabinet back, top, base and sides in operative relation to one another, and a door hingedly connected to one of said side front panels, said door including a panel having top, bottom and side edges with said door panel edges respectively having inwardly extending door top, bottom and sides, a pair of L-shaped hinged brackets each having one arm secured to one side front panel, respectively, at the upper and lower ends thereof and said brackets, respectively, having its other arm on the door top and below the door bottom, said door having formed in its one side, for a 12 a distance upwardly of its lower end and downwardly of its upper end, a hinge bead, and hinge pins extending through the overlying and underlying bracket arms and door hinge beads.

11. In a cabinet of the class described including a a back panel having npper,lower and side edges with said depending side flange and said top panel having a de-.

pending front panel, a base including a base panel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, in-

wardly projects rear, top and bottom flanges respectively against the inner surface of the cabinet back, top and base, said side panels having inwardly of its rear, top and bottom edges an offset panel portion and a shoulder at the inner end of each panel portion with said panel portions having a depth equal to the Width of the back, top and base side flanges, said side panels each having transversely projecting from its front edge a front panel,

said top, base and back side flanges, respectively, engaging the side panels offset panel portions exterior surfaces and with said top, base and back side flanges free edges against said ofiset panel portion shoulders, a shelf extending between the sides and from the back to each side front panel for pressing the side panels offset panel portions against the top, base and back side flanges, and cooperating means on said shelf, back and side front panels locking the shelf in operative position and securing the cabinet back, top, base and sides in operative relation to one another.

12. In a cabinet of the class described including a back panel having upper, lower and side edges with said back panel upper and lower edges each having extending therefrom an outward angular latching flange, said back panel side edges each having a right angle flange inwardly projecting therefrom, a top including a top panel having front, rear and side edges with said top panel having an inward downward angular latching flange extending from its rear edge engaged with the back upper outward angular latching flange, said top panel side edges each having a depending side flange and said top panel having a depending front panel, a base including a base panel having front, rear and side edges with said base panel having an inward upward angular latching flange extending from its rear edge engaged with the back lower outward angular latching flange, said base panel side edges each having an upstanding side flange and said base panel having. an upstanding front panel, opposed sides each including a panel having a rear, a front, a top and a bottom edge from which rear, top and bottom edges, respectively, inwardly projects rear, top and bottom flanges respectively against the inner surface of the cabinet back, top and base, said side panels having inwardly of its rear, top and bottom edges an offset panel portion and a shoulder at the inner end of each panel portion with said panel portions having a depth equal to the width of the back, top and base side flanges, said side panels each having transversely projecting from its front edge a'front panel, said side front panels, respectively, extending between the shoulders at the inner ends of its side panel offset top and bottom panel portions, each side having a transversely projecting tongue at the front ends of its top and bottom oifset panel portions, said top, base and back side flanges, respectively, engaging the side panels offset panel portions exterior surfaces and withsaid top, base and back side flanges free edges against said oifset panel portion shoulders, said top and base front panels having the side top and bottom tongues disposed therebehind, a shelf extending between the sides and from the back to each side front panel for pressing the side panels oifset panel portions against the top, base and back side flanges, and cooperating means on said shelf, back and side front panels locking the shelves in operative position and securing the cabinet back, top, base and sides in operative relation to one another.

References Cited by the Examiner UNITED STATES PATENTS 2,300,405 11/ 1942 Cook 312-329 X 2,571,622 10/ 1951 Schmidt 312263 2,915,352 12/ 1959 Piker 312-257 10 CHANC'ELLOR E. HARRIS, Primary Examiner.

FRANK B. SHERRY, Examiner. 

1. IN A KNOCKED-DOWN CABINET THE COMBINATION OF A SEPARATE UPSTANDING BACK MEMBER, A SEPARATE HORIZONTAL TOP MEMBER, A SEPARATE HORIZONTAL BASE MEMBER, A PAIR OF SEPARATE UPSTANDING SIDE MEMBERS, SAID BACK AND SIDE MEMBERS EACH OF A SIMILAR HEIGHT AND EACH OF SAID STOP AND BASE MEMBERS HAVING A WIDTH EQUAL TO THE WIDTH OF THE BACK MEMBER AND A LENGTH EQUAL TO THE WIDTH OF THE SIDE MEMBERS, EACH OF SAID MEMBERS INCLUDING A RECTANGULAR PANEL HAVING BOUNDING EDGES, EACH OF SAID MEMBERS HAVING FLANGES FROM THE BOUNDING EDGES OF ITS PANEL EXTENDING ANGULARLY TO THE PLANE OF THE PANEL, SAID SIDE MEMBERS EACH HAVING ONE OF ITS VERTICAL FLANGES FORMING A FRONT PANEL VERTICALLY THEREOF, CERTAIN OF SAID BACK, TOP AND BASE FLANGE INTERLOCKED WITH ONE ANOTHER AND THE REMAINING FLANGES OF SAID TOP, BACK AND BASE MEMBERS ENGAGED, RESPECTIVELY, WITH EACH OF THE SIDE MEMBERS AND ITS FRONT PANEL FOR SPACING SAID SIDE MEMBERS FROM ONE ANOTHER, A SHELF INTERMEDIATE THE HEIGHT OF SAID UPSTAND- 